title: Solid-phase microextraction for the determination of haloanisoles in wines and other alcoholic beverages using gas chromatography and atomic emission detection.
abstract: A headspace solid-phase microextraction (HS-SPME) method for the determination of 12 haloanisoles in wine and spirit samples using gas chromatography with atomic emission detection (GC-AED) was developed. The different factors affecting the efficiency of the extraction were carefully optimized. The divinylbenzene/Carboxen/polydimethylsiloxane (DVB/CAR/PDMS) fiber was the most suitable for preconcentrating the analytes from the headspace of the sample solution.
  
  
  METHODS
  water dilutions of 3:4 and 1:6 for wines and spirits, respectively, and the use of a mixed bromochloroanisole compound as internal standard allowed sample quantification against external standards prepared in the presence of 5% (v/v) ethanol. Detection limits ranged from 1.2 to 18.5ngL(-1), depending on the compound and the sample analyzed, with a fiber time exposure of 60min at 75 degrees C. The optimized method was successfully applied to different samples, and several of the studied haloanisoles were detected at concentration levels ranging from 10.3ngL(-1) to 1.14ngmL(-1).
authors.affiliation: Department of Analytical Chemistry, Faculty of Chemistry, University of Murcia, E-30071 Murcia, Spain.
authors.forename: Natalia
authors.initials: N
authors.lastname: Campillo
authors.forename: Rosa
authors.initials: R
authors.lastname: Peñalver
authors.forename: Manuel
authors.initials: M
authors.lastname: Hernández-Córdoba
mesh_terms: D000434:Alcoholic Beverages / Q000032:analysis*; D000840:Anisoles / Q000032:analysis*; D002849:Chromatography, Gas / Q000295:instrumentation; D012015:Reference Standards; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D052617:Solid Phase Microextraction / Q000379:methods*; D014920:Wine / Q000032:analysis*
chemical_list: D000840:Anisoles